A review of scalable data sharing techniques for secure cloud storage

A review of scalable data sharing techniques for secure cloud storage Cloud computing is a technology which supplies a shared pool of configurable IT resources such as network, software and database. Cloud Computing provides the facility of centralized data storage, user can access their data online. Cloud storage is very popular now a days. Data which is stored on cloudsshould be secure from adversaries. In cloud storage data sharing is an important functionality. Data transfer should be done securely and efficiently with others in cloud computing. In this paper we review different scalable data sharing techniques in cloud storage. To minimize the expense of managing and storing secret keys for general cryptographic use is aim of cryptographic key assignment schemes. For supporting flexible hierarchy in decryption power delegation, a encryption scheme is represented which is basically proposed for concisely transmitting large number of decryption keys in broadcast scenario. To protect data privacy is a central question for cloud storage. We illustrate new public-key encryption scheme, which produces constant-size cipher texts such as efficient delegation decryption rights for any set of cipher texts are possible.

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